| http://www.w3.org/ns/prov#value | - hed or cyclic, and may contain one or more atoms other than carbon, hydrogen or oxygen; andwherein said 2-methacryloyloxyethylcarbamic acid ester is represented by formula (I'): CH2 ═C(R1 ')C(═O)O(CH2)2 NHC(═O)OR2 '(I') wherein R1 ' represents methyl; R2 ' represents an organic chain containing at least one oxyalkylene group, wherein said organic chain may be linear, branched or
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